SOLUTION: 1. Evaluate (-x) ^ 2 which means (-x) to the power of 2 or square and compare this to - (x^2). Use x=5. Thanks!!

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: 1. Evaluate (-x) ^ 2 which means (-x) to the power of 2 or square and compare this to - (x^2). Use x=5. Thanks!!      Log On


   

Question 82912: 1. Evaluate (-x) ^ 2 which means (-x) to the power of 2 or square and compare this to - (x^2). Use x=5.
Thanks!!
Answer by sofiyacherni(99) About Me  (Show Source):
You can put this solution on YOUR website!
Evaluate (-x) ^ 2 which means (-x) to the power of 2 or square and compare this to - (x^2). Use x=5.
first case: whenever a negative is being squared it becomes positive
so %28-x%29%28-x%29=x%5E2=25
second case: in this case the negative sign is NOT being squared, just the x, so this number will stay negative -%28x%29%28x%29=-x%5E2=-25
the result is that even though the number is the same, the sign varies